who know how to report incometax?

Hi ever body,
As you know, on Monday, I went with Xingxing to find the solution for her in almost every place in York University. Unfortunately we spent almost one hour and a half to find the answers, but we could not find the answers. Moreover, we felt disappointed with the service in free tax clinic. I wondered why they did not have a service for international students because York University has many international students study in here. I think even though we have lived in Toronto for long time, we still don't know how to report income tax or contact with the government. If you have friends who know how to report income tax, please tell Xing-xing.